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Finding the Fourth Proportional to 96,887.60, 145,331.40 and 91,444.40

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Solution

The fourth proportional to 96,887.60, 145,331.40 and 91,444.40 is: 137,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,887.60 : 145,331.40 = 91,444.40 : x
  2. Step 2: Convert to fraction form
    96,887.60/145,331.40 = 91,444.40/x
  3. Step 3: Cross multiply
    96,887.60x = 145,331.40 × 91,444.40
  4. Step 4: Simplify right side
    96,887.60x = 13,289,742,674.16
  5. Step 5: Solve for x
    x = 13,289,742,674.16/96,887.60
  6. Step 6: Final answer
    x = 137,166.60

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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.