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Finding the Fourth Proportional to 191,419.70, 286,999.95 and 101,477.30

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Solution

The fourth proportional to 191,419.70, 286,999.95 and 101,477.30 is: 152,147.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,419.70 : 286,999.95 = 101,477.30 : x
  2. Step 2: Convert to fraction form
    191,419.70/286,999.95 = 101,477.30/x
  3. Step 3: Cross multiply
    191,419.70x = 286,999.95 × 101,477.30
  4. Step 4: Simplify right side
    191,419.70x = 29,123,980,026.14
  5. Step 5: Solve for x
    x = 29,123,980,026.14/191,419.70
  6. Step 6: Final answer
    x = 152,147.25

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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.