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Finding the Fourth Proportional to 191,437.53, 287,187.39 and 65,089.05

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Solution

The fourth proportional to 191,437.53, 287,187.39 and 65,089.05 is: 97,644.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,437.53 : 287,187.39 = 65,089.05 : x
  2. Step 2: Convert to fraction form
    191,437.53/287,187.39 = 65,089.05/x
  3. Step 3: Cross multiply
    191,437.53x = 287,187.39 × 65,089.05
  4. Step 4: Simplify right side
    191,437.53x = 18,692,754,387.08
  5. Step 5: Solve for x
    x = 18,692,754,387.08/191,437.53
  6. Step 6: Final answer
    x = 97,644.15

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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.