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Finding the Fourth Proportional to 107,871.60, 162,001.80 and 104,372.40

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Solution

The fourth proportional to 107,871.60, 162,001.80 and 104,372.40 is: 156,746.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,871.60 : 162,001.80 = 104,372.40 : x
  2. Step 2: Convert to fraction form
    107,871.60/162,001.80 = 104,372.40/x
  3. Step 3: Cross multiply
    107,871.60x = 162,001.80 × 104,372.40
  4. Step 4: Simplify right side
    107,871.60x = 16,908,516,670.32
  5. Step 5: Solve for x
    x = 16,908,516,670.32/107,871.60
  6. Step 6: Final answer
    x = 156,746.69

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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.