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Finding the Fourth Proportional to 124,567.32, 171,907.06 and 67,981.80

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Solution

The fourth proportional to 124,567.32, 171,907.06 and 67,981.80 is: 93,817.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,567.32 : 171,907.06 = 67,981.80 : x
  2. Step 2: Convert to fraction form
    124,567.32/171,907.06 = 67,981.80/x
  3. Step 3: Cross multiply
    124,567.32x = 171,907.06 × 67,981.80
  4. Step 4: Simplify right side
    124,567.32x = 11,686,551,371.51
  5. Step 5: Solve for x
    x = 11,686,551,371.51/124,567.32
  6. Step 6: Final answer
    x = 93,817.15

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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.