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Finding the Fourth Proportional to 184,864.80, 255,113.43 and 99,981.87

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Solution

The fourth proportional to 184,864.80, 255,113.43 and 99,981.87 is: 137,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,864.80 : 255,113.43 = 99,981.87 : x
  2. Step 2: Convert to fraction form
    184,864.80/255,113.43 = 99,981.87/x
  3. Step 3: Cross multiply
    184,864.80x = 255,113.43 × 99,981.87
  4. Step 4: Simplify right side
    184,864.80x = 25,506,717,793.51
  5. Step 5: Solve for x
    x = 25,506,717,793.51/184,864.80
  6. Step 6: Final answer
    x = 137,974.98

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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.