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Finding the Fourth Proportional to 359,307.60, 538,869.47 and 106,528.98

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Solution

The fourth proportional to 359,307.60, 538,869.47 and 106,528.98 is: 159,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,307.60 : 538,869.47 = 106,528.98 : x
  2. Step 2: Convert to fraction form
    359,307.60/538,869.47 = 106,528.98/x
  3. Step 3: Cross multiply
    359,307.60x = 538,869.47 × 106,528.98
  4. Step 4: Simplify right side
    359,307.60x = 57,405,214,992.24
  5. Step 5: Solve for x
    x = 57,405,214,992.24/359,307.60
  6. Step 6: Final answer
    x = 159,766.21

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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.