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Finding the Fourth Proportional to 205,303.60, 307,955.40 and 150,007.60

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Solution

The fourth proportional to 205,303.60, 307,955.40 and 150,007.60 is: 225,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,303.60 : 307,955.40 = 150,007.60 : x
  2. Step 2: Convert to fraction form
    205,303.60/307,955.40 = 150,007.60/x
  3. Step 3: Cross multiply
    205,303.60x = 307,955.40 × 150,007.60
  4. Step 4: Simplify right side
    205,303.60x = 46,195,650,461.04
  5. Step 5: Solve for x
    x = 46,195,650,461.04/205,303.60
  6. Step 6: Final answer
    x = 225,011.40

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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.