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Finding the Fourth Proportional to 243,045.13, 364,585.21 and 93,285.42

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Solution

The fourth proportional to 243,045.13, 364,585.21 and 93,285.42 is: 139,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,045.13 : 364,585.21 = 93,285.42 : x
  2. Step 2: Convert to fraction form
    243,045.13/364,585.21 = 93,285.42/x
  3. Step 3: Cross multiply
    243,045.13x = 364,585.21 × 93,285.42
  4. Step 4: Simplify right side
    243,045.13x = 34,010,482,151.29
  5. Step 5: Solve for x
    x = 34,010,482,151.29/243,045.13
  6. Step 6: Final answer
    x = 139,934.85

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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.