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Finding the Fourth Proportional to 191,174.90, 286,368.50 and 112,098.48

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Solution

The fourth proportional to 191,174.90, 286,368.50 and 112,098.48 is: 167,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,174.90 : 286,368.50 = 112,098.48 : x
  2. Step 2: Convert to fraction form
    191,174.90/286,368.50 = 112,098.48/x
  3. Step 3: Cross multiply
    191,174.90x = 286,368.50 × 112,098.48
  4. Step 4: Simplify right side
    191,174.90x = 32,101,473,569.88
  5. Step 5: Solve for x
    x = 32,101,473,569.88/191,174.90
  6. Step 6: Final answer
    x = 167,916.78

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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.