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Finding the Fourth Proportional to 191,893.80, 287,838.68 and 65,532.60

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Solution

The fourth proportional to 191,893.80, 287,838.68 and 65,532.60 is: 98,298.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,893.80 : 287,838.68 = 65,532.60 : x
  2. Step 2: Convert to fraction form
    191,893.80/287,838.68 = 65,532.60/x
  3. Step 3: Cross multiply
    191,893.80x = 287,838.68 × 65,532.60
  4. Step 4: Simplify right side
    191,893.80x = 18,862,817,080.97
  5. Step 5: Solve for x
    x = 18,862,817,080.97/191,893.80
  6. Step 6: Final answer
    x = 98,298.21

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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.