Home / 352,397.12-528,590.94-86,159.92

Finding the Fourth Proportional to 352,397.12, 528,590.94 and 86,159.92

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Solution

The fourth proportional to 352,397.12, 528,590.94 and 86,159.92 is: 129,238.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,397.12 : 528,590.94 = 86,159.92 : x
  2. Step 2: Convert to fraction form
    352,397.12/528,590.94 = 86,159.92/x
  3. Step 3: Cross multiply
    352,397.12x = 528,590.94 × 86,159.92
  4. Step 4: Simplify right side
    352,397.12x = 45,543,353,103.12
  5. Step 5: Solve for x
    x = 45,543,353,103.12/352,397.12
  6. Step 6: Final answer
    x = 129,238.72

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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.