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Finding the Fourth Proportional to 134,493.60, 201,740.40 and 87,254.40

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Solution

The fourth proportional to 134,493.60, 201,740.40 and 87,254.40 is: 130,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,493.60 : 201,740.40 = 87,254.40 : x
  2. Step 2: Convert to fraction form
    134,493.60/201,740.40 = 87,254.40/x
  3. Step 3: Cross multiply
    134,493.60x = 201,740.40 × 87,254.40
  4. Step 4: Simplify right side
    134,493.60x = 17,602,737,557.76
  5. Step 5: Solve for x
    x = 17,602,737,557.76/134,493.60
  6. Step 6: Final answer
    x = 130,881.60

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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.