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Finding the Fourth Proportional to 191,151.76, 286,666.35 and 63,039.28

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Solution

The fourth proportional to 191,151.76, 286,666.35 and 63,039.28 is: 94,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,151.76 : 286,666.35 = 63,039.28 : x
  2. Step 2: Convert to fraction form
    191,151.76/286,666.35 = 63,039.28/x
  3. Step 3: Cross multiply
    191,151.76x = 286,666.35 × 63,039.28
  4. Step 4: Simplify right side
    191,151.76x = 18,071,240,304.23
  5. Step 5: Solve for x
    x = 18,071,240,304.23/191,151.76
  6. Step 6: Final answer
    x = 94,538.71

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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.