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Finding the Fourth Proportional to 124,963.84, 172,442.88 and 68,376.32

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Solution

The fourth proportional to 124,963.84, 172,442.88 and 68,376.32 is: 94,355.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,963.84 : 172,442.88 = 68,376.32 : x
  2. Step 2: Convert to fraction form
    124,963.84/172,442.88 = 68,376.32/x
  3. Step 3: Cross multiply
    124,963.84x = 172,442.88 × 68,376.32
  4. Step 4: Simplify right side
    124,963.84x = 11,791,009,544.60
  5. Step 5: Solve for x
    x = 11,791,009,544.60/124,963.84
  6. Step 6: Final answer
    x = 94,355.37

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1.5x scale

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.