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Finding the Fourth Proportional to 117,681, 162,423.36 and 69,925.08

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Solution

The fourth proportional to 117,681, 162,423.36 and 69,925.08 is: 96,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,681 : 162,423.36 = 69,925.08 : x
  2. Step 2: Convert to fraction form
    117,681/162,423.36 = 69,925.08/x
  3. Step 3: Cross multiply
    117,681x = 162,423.36 × 69,925.08
  4. Step 4: Simplify right side
    117,681x = 11,357,466,441.87
  5. Step 5: Solve for x
    x = 11,357,466,441.87/117,681
  6. Step 6: Final answer
    x = 96,510.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.