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Finding the Fourth Proportional to 359,341.72, 538,970.66 and 93,081.76

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Solution

The fourth proportional to 359,341.72, 538,970.66 and 93,081.76 is: 139,611.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,341.72 : 538,970.66 = 93,081.76 : x
  2. Step 2: Convert to fraction form
    359,341.72/538,970.66 = 93,081.76/x
  3. Step 3: Cross multiply
    359,341.72x = 538,970.66 × 93,081.76
  4. Step 4: Simplify right side
    359,341.72x = 50,168,336,157.38
  5. Step 5: Solve for x
    x = 50,168,336,157.38/359,341.72
  6. Step 6: Final answer
    x = 139,611.78

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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.