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Finding the Fourth Proportional to 101,245.68, 151,898.04 and 42,070.32

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Solution

The fourth proportional to 101,245.68, 151,898.04 and 42,070.32 is: 63,117.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,245.68 : 151,898.04 = 42,070.32 : x
  2. Step 2: Convert to fraction form
    101,245.68/151,898.04 = 42,070.32/x
  3. Step 3: Cross multiply
    101,245.68x = 151,898.04 × 42,070.32
  4. Step 4: Simplify right side
    101,245.68x = 6,390,399,150.17
  5. Step 5: Solve for x
    x = 6,390,399,150.17/101,245.68
  6. Step 6: Final answer
    x = 63,117.75

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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.