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Finding the Fourth Proportional to 160,460.87, 240,681.58 and 42,129.59

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Solution

The fourth proportional to 160,460.87, 240,681.58 and 42,129.59 is: 63,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,460.87 : 240,681.58 = 42,129.59 : x
  2. Step 2: Convert to fraction form
    160,460.87/240,681.58 = 42,129.59/x
  3. Step 3: Cross multiply
    160,460.87x = 240,681.58 × 42,129.59
  4. Step 4: Simplify right side
    160,460.87x = 10,139,814,977.22
  5. Step 5: Solve for x
    x = 10,139,814,977.22/160,460.87
  6. Step 6: Final answer
    x = 63,191.83

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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.