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Finding the Fourth Proportional to 124,641.92, 172,005.84 and 68,053.34

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Solution

The fourth proportional to 124,641.92, 172,005.84 and 68,053.34 is: 93,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,641.92 : 172,005.84 = 68,053.34 : x
  2. Step 2: Convert to fraction form
    124,641.92/172,005.84 = 68,053.34/x
  3. Step 3: Cross multiply
    124,641.92x = 172,005.84 × 68,053.34
  4. Step 4: Simplify right side
    124,641.92x = 11,705,571,911.51
  5. Step 5: Solve for x
    x = 11,705,571,911.51/124,641.92
  6. Step 6: Final answer
    x = 93,913.60

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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.