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Finding the Fourth Proportional to 191,810.20, 287,715.30 and 98,498.20

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Solution

The fourth proportional to 191,810.20, 287,715.30 and 98,498.20 is: 147,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,810.20 : 287,715.30 = 98,498.20 : x
  2. Step 2: Convert to fraction form
    191,810.20/287,715.30 = 98,498.20/x
  3. Step 3: Cross multiply
    191,810.20x = 287,715.30 × 98,498.20
  4. Step 4: Simplify right side
    191,810.20x = 28,339,439,162.46
  5. Step 5: Solve for x
    x = 28,339,439,162.46/191,810.20
  6. Step 6: Final answer
    x = 147,747.30

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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.