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Finding the Fourth Proportional to 108,412.77, 162,614.14 and 28,448.76

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Solution

The fourth proportional to 108,412.77, 162,614.14 and 28,448.76 is: 42,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,412.77 : 162,614.14 = 28,448.76 : x
  2. Step 2: Convert to fraction form
    108,412.77/162,614.14 = 28,448.76/x
  3. Step 3: Cross multiply
    108,412.77x = 162,614.14 × 28,448.76
  4. Step 4: Simplify right side
    108,412.77x = 4,626,170,641.47
  5. Step 5: Solve for x
    x = 4,626,170,641.47/108,412.77
  6. Step 6: Final answer
    x = 42,671.82

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1.5x scale

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.