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Finding the Fourth Proportional to 75,165.56, 103,737.20 and 43,335.60

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Solution

The fourth proportional to 75,165.56, 103,737.20 and 43,335.60 is: 59,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,165.56 : 103,737.20 = 43,335.60 : x
  2. Step 2: Convert to fraction form
    75,165.56/103,737.20 = 43,335.60/x
  3. Step 3: Cross multiply
    75,165.56x = 103,737.20 × 43,335.60
  4. Step 4: Simplify right side
    75,165.56x = 4,495,513,804.32
  5. Step 5: Solve for x
    x = 4,495,513,804.32/75,165.56
  6. Step 6: Final answer
    x = 59,808.16

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1.5x scale

Why These Related Problems?

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