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Finding the Fourth Proportional to 98,852.01, 148,952.55 and 81,705.93

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Solution

The fourth proportional to 98,852.01, 148,952.55 and 81,705.93 is: 123,116.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,852.01 : 148,952.55 = 81,705.93 : x
  2. Step 2: Convert to fraction form
    98,852.01/148,952.55 = 81,705.93/x
  3. Step 3: Cross multiply
    98,852.01x = 148,952.55 × 81,705.93
  4. Step 4: Simplify right side
    98,852.01x = 12,170,306,623.62
  5. Step 5: Solve for x
    x = 12,170,306,623.62/98,852.01
  6. Step 6: Final answer
    x = 123,116.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.