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Finding the Fourth Proportional to 356,582.43, 535,047.80 and 156,877.88

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Solution

The fourth proportional to 356,582.43, 535,047.80 and 156,877.88 is: 235,393.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,582.43 : 535,047.80 = 156,877.88 : x
  2. Step 2: Convert to fraction form
    356,582.43/535,047.80 = 156,877.88/x
  3. Step 3: Cross multiply
    356,582.43x = 535,047.80 × 156,877.88
  4. Step 4: Simplify right side
    356,582.43x = 83,937,161,103.04
  5. Step 5: Solve for x
    x = 83,937,161,103.04/356,582.43
  6. Step 6: Final answer
    x = 235,393.43

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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.