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Finding the Fourth Proportional to 98,570.90, 147,840.15 and 27,498.40

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Solution

The fourth proportional to 98,570.90, 147,840.15 and 27,498.40 is: 41,243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,570.90 : 147,840.15 = 27,498.40 : x
  2. Step 2: Convert to fraction form
    98,570.90/147,840.15 = 27,498.40/x
  3. Step 3: Cross multiply
    98,570.90x = 147,840.15 × 27,498.40
  4. Step 4: Simplify right side
    98,570.90x = 4,065,367,580.76
  5. Step 5: Solve for x
    x = 4,065,367,580.76/98,570.90
  6. Step 6: Final answer
    x = 41,243.08

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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.