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Finding the Fourth Proportional to 359,053.95, 538,680.57 and 156,667.77

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Solution

The fourth proportional to 359,053.95, 538,680.57 and 156,667.77 is: 235,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,053.95 : 538,680.57 = 156,667.77 : x
  2. Step 2: Convert to fraction form
    359,053.95/538,680.57 = 156,667.77/x
  3. Step 3: Cross multiply
    359,053.95x = 538,680.57 × 156,667.77
  4. Step 4: Simplify right side
    359,053.95x = 84,393,883,644.23
  5. Step 5: Solve for x
    x = 84,393,883,644.23/359,053.95
  6. Step 6: Final answer
    x = 235,045.13

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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.