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Finding the Fourth Proportional to 268,332.80, 402,547.80 and 134,877.20

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Solution

The fourth proportional to 268,332.80, 402,547.80 and 134,877.20 is: 202,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,332.80 : 402,547.80 = 134,877.20 : x
  2. Step 2: Convert to fraction form
    268,332.80/402,547.80 = 134,877.20/x
  3. Step 3: Cross multiply
    268,332.80x = 402,547.80 × 134,877.20
  4. Step 4: Simplify right side
    268,332.80x = 54,294,520,130.16
  5. Step 5: Solve for x
    x = 54,294,520,130.16/268,332.80
  6. Step 6: Final answer
    x = 202,340.23

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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.