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Finding the Fourth Proportional to 91,703.36, 137,555.08 and 60,531.32

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Solution

The fourth proportional to 91,703.36, 137,555.08 and 60,531.32 is: 90,797.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,703.36 : 137,555.08 = 60,531.32 : x
  2. Step 2: Convert to fraction form
    91,703.36/137,555.08 = 60,531.32/x
  3. Step 3: Cross multiply
    91,703.36x = 137,555.08 × 60,531.32
  4. Step 4: Simplify right side
    91,703.36x = 8,326,390,565.11
  5. Step 5: Solve for x
    x = 8,326,390,565.11/91,703.36
  6. Step 6: Final answer
    x = 90,797.01

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1.5x scale

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.