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Finding the Fourth Proportional to 359,364.60, 538,614.90 and 148,894.20

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Solution

The fourth proportional to 359,364.60, 538,614.90 and 148,894.20 is: 223,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,364.60 : 538,614.90 = 148,894.20 : x
  2. Step 2: Convert to fraction form
    359,364.60/538,614.90 = 148,894.20/x
  3. Step 3: Cross multiply
    359,364.60x = 538,614.90 × 148,894.20
  4. Step 4: Simplify right side
    359,364.60x = 80,196,634,643.58
  5. Step 5: Solve for x
    x = 80,196,634,643.58/359,364.60
  6. Step 6: Final answer
    x = 223,162.31

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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.