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Finding the Fourth Proportional to 99,048.96, 148,581.72 and 46,430.28

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Solution

The fourth proportional to 99,048.96, 148,581.72 and 46,430.28 is: 69,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,048.96 : 148,581.72 = 46,430.28 : x
  2. Step 2: Convert to fraction form
    99,048.96/148,581.72 = 46,430.28/x
  3. Step 3: Cross multiply
    99,048.96x = 148,581.72 × 46,430.28
  4. Step 4: Simplify right side
    99,048.96x = 6,898,690,862.48
  5. Step 5: Solve for x
    x = 6,898,690,862.48/99,048.96
  6. Step 6: Final answer
    x = 69,649.30

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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.