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Finding the Fourth Proportional to 191,352.12, 287,063.01 and 63,275.73

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Solution

The fourth proportional to 191,352.12, 287,063.01 and 63,275.73 is: 94,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,352.12 : 287,063.01 = 63,275.73 : x
  2. Step 2: Convert to fraction form
    191,352.12/287,063.01 = 63,275.73/x
  3. Step 3: Cross multiply
    191,352.12x = 287,063.01 × 63,275.73
  4. Step 4: Simplify right side
    191,352.12x = 18,164,121,513.75
  5. Step 5: Solve for x
    x = 18,164,121,513.75/191,352.12
  6. Step 6: Final answer
    x = 94,925.11

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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.