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Finding the Fourth Proportional to 124,570.13, 171,916.02 and 70,872.44

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Solution

The fourth proportional to 124,570.13, 171,916.02 and 70,872.44 is: 97,809.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,570.13 : 171,916.02 = 70,872.44 : x
  2. Step 2: Convert to fraction form
    124,570.13/171,916.02 = 70,872.44/x
  3. Step 3: Cross multiply
    124,570.13x = 171,916.02 × 70,872.44
  4. Step 4: Simplify right side
    124,570.13x = 12,184,106,952.91
  5. Step 5: Solve for x
    x = 12,184,106,952.91/124,570.13
  6. Step 6: Final answer
    x = 97,809.22

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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.