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Finding the Fourth Proportional to 124,627.54, 171,985.10 and 68,038.90

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Solution

The fourth proportional to 124,627.54, 171,985.10 and 68,038.90 is: 93,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,627.54 : 171,985.10 = 68,038.90 : x
  2. Step 2: Convert to fraction form
    124,627.54/171,985.10 = 68,038.90/x
  3. Step 3: Cross multiply
    124,627.54x = 171,985.10 × 68,038.90
  4. Step 4: Simplify right side
    124,627.54x = 11,701,677,020.39
  5. Step 5: Solve for x
    x = 11,701,677,020.39/124,627.54
  6. Step 6: Final answer
    x = 93,893.19

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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.