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Finding the Fourth Proportional to 110,426, 152,378.28 and 62,681.36

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Solution

The fourth proportional to 110,426, 152,378.28 and 62,681.36 is: 86,494.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,426 : 152,378.28 = 62,681.36 : x
  2. Step 2: Convert to fraction form
    110,426/152,378.28 = 62,681.36/x
  3. Step 3: Cross multiply
    110,426x = 152,378.28 × 62,681.36
  4. Step 4: Simplify right side
    110,426x = 9,551,277,824.86
  5. Step 5: Solve for x
    x = 9,551,277,824.86/110,426
  6. Step 6: Final answer
    x = 86,494.83

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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.