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Finding the Fourth Proportional to 93,484, 129,008.55 and 51,043.06

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Solution

The fourth proportional to 93,484, 129,008.55 and 51,043.06 is: 70,439.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,484 : 129,008.55 = 51,043.06 : x
  2. Step 2: Convert to fraction form
    93,484/129,008.55 = 51,043.06/x
  3. Step 3: Cross multiply
    93,484x = 129,008.55 × 51,043.06
  4. Step 4: Simplify right side
    93,484x = 6,584,991,158.16
  5. Step 5: Solve for x
    x = 6,584,991,158.16/93,484
  6. Step 6: Final answer
    x = 70,439.77

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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.