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Finding the Fourth Proportional to 152,582.40, 210,542.40 and 88,070.40

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Solution

The fourth proportional to 152,582.40, 210,542.40 and 88,070.40 is: 121,524.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,582.40 : 210,542.40 = 88,070.40 : x
  2. Step 2: Convert to fraction form
    152,582.40/210,542.40 = 88,070.40/x
  3. Step 3: Cross multiply
    152,582.40x = 210,542.40 × 88,070.40
  4. Step 4: Simplify right side
    152,582.40x = 18,542,553,384.96
  5. Step 5: Solve for x
    x = 18,542,553,384.96/152,582.40
  6. Step 6: Final answer
    x = 121,524.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.