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Finding the Fourth Proportional to 240,361,477.60, 360,542,216.40 and 86,952,175.60

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Solution

The fourth proportional to 240,361,477.60, 360,542,216.40 and 86,952,175.60 is: 130,428,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,361,477.60 : 360,542,216.40 = 86,952,175.60 : x
  2. Step 2: Convert to fraction form
    240,361,477.60/360,542,216.40 = 86,952,175.60/x
  3. Step 3: Cross multiply
    240,361,477.60x = 360,542,216.40 × 86,952,175.60
  4. Step 4: Simplify right side
    240,361,477.60x = 31,349,930,111,625,996
  5. Step 5: Solve for x
    x = 31,349,930,111,625,996/240,361,477.60
  6. Step 6: Final answer
    x = 130,428,263.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.