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Finding the Fourth Proportional to 99,270.29, 136,994.06 and 53,948.90

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Solution

The fourth proportional to 99,270.29, 136,994.06 and 53,948.90 is: 74,450.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,270.29 : 136,994.06 = 53,948.90 : x
  2. Step 2: Convert to fraction form
    99,270.29/136,994.06 = 53,948.90/x
  3. Step 3: Cross multiply
    99,270.29x = 136,994.06 × 53,948.90
  4. Step 4: Simplify right side
    99,270.29x = 7,390,678,843.53
  5. Step 5: Solve for x
    x = 7,390,678,843.53/99,270.29
  6. Step 6: Final answer
    x = 74,450.06

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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.