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Finding the Fourth Proportional to 124,627.47, 171,985.02 and 68,038.84

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Solution

The fourth proportional to 124,627.47, 171,985.02 and 68,038.84 is: 93,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,627.47 : 171,985.02 = 68,038.84 : x
  2. Step 2: Convert to fraction form
    124,627.47/171,985.02 = 68,038.84/x
  3. Step 3: Cross multiply
    124,627.47x = 171,985.02 × 68,038.84
  4. Step 4: Simplify right side
    124,627.47x = 11,701,661,258.18
  5. Step 5: Solve for x
    x = 11,701,661,258.18/124,627.47
  6. Step 6: Final answer
    x = 93,893.11

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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.