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Finding the Fourth Proportional to 191,652.48, 287,284.32 and 91,666.08

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Solution

The fourth proportional to 191,652.48, 287,284.32 and 91,666.08 is: 137,406.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,652.48 : 287,284.32 = 91,666.08 : x
  2. Step 2: Convert to fraction form
    191,652.48/287,284.32 = 91,666.08/x
  3. Step 3: Cross multiply
    191,652.48x = 287,284.32 × 91,666.08
  4. Step 4: Simplify right side
    191,652.48x = 26,334,227,459.87
  5. Step 5: Solve for x
    x = 26,334,227,459.87/191,652.48
  6. Step 6: Final answer
    x = 137,406.14

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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.