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Finding the Fourth Proportional to 128,392.17, 192,655.41 and 52,547.01

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Solution

The fourth proportional to 128,392.17, 192,655.41 and 52,547.01 is: 78,848.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,392.17 : 192,655.41 = 52,547.01 : x
  2. Step 2: Convert to fraction form
    128,392.17/192,655.41 = 52,547.01/x
  3. Step 3: Cross multiply
    128,392.17x = 192,655.41 × 52,547.01
  4. Step 4: Simplify right side
    128,392.17x = 10,123,465,755.82
  5. Step 5: Solve for x
    x = 10,123,465,755.82/128,392.17
  6. Step 6: Final answer
    x = 78,848.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.