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Finding the Fourth Proportional to 113,710, 156,923.04 and 63,412.24

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Solution

The fourth proportional to 113,710, 156,923.04 and 63,412.24 is: 87,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,710 : 156,923.04 = 63,412.24 : x
  2. Step 2: Convert to fraction form
    113,710/156,923.04 = 63,412.24/x
  3. Step 3: Cross multiply
    113,710x = 156,923.04 × 63,412.24
  4. Step 4: Simplify right side
    113,710x = 9,950,841,474.01
  5. Step 5: Solve for x
    x = 9,950,841,474.01/113,710
  6. Step 6: Final answer
    x = 87,510.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.