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Finding the Fourth Proportional to 156,342.59, 215,673.50 and 98,885.14

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Solution

The fourth proportional to 156,342.59, 215,673.50 and 98,885.14 is: 136,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,342.59 : 215,673.50 = 98,885.14 : x
  2. Step 2: Convert to fraction form
    156,342.59/215,673.50 = 98,885.14/x
  3. Step 3: Cross multiply
    156,342.59x = 215,673.50 × 98,885.14
  4. Step 4: Simplify right side
    156,342.59x = 21,326,903,949.82
  5. Step 5: Solve for x
    x = 21,326,903,949.82/156,342.59
  6. Step 6: Final answer
    x = 136,411.35

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