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Finding the Fourth Proportional to 110,804.40, 152,923.20 and 62,407.92

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Solution

The fourth proportional to 110,804.40, 152,923.20 and 62,407.92 is: 86,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,804.40 : 152,923.20 = 62,407.92 : x
  2. Step 2: Convert to fraction form
    110,804.40/152,923.20 = 62,407.92/x
  3. Step 3: Cross multiply
    110,804.40x = 152,923.20 × 62,407.92
  4. Step 4: Simplify right side
    110,804.40x = 9,543,618,831.74
  5. Step 5: Solve for x
    x = 9,543,618,831.74/110,804.40
  6. Step 6: Final answer
    x = 86,130.32

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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.