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Finding the Fourth Proportional to 93,881.94, 129,569.13 and 53,586.47

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Solution

The fourth proportional to 93,881.94, 129,569.13 and 53,586.47 is: 73,956.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,881.94 : 129,569.13 = 53,586.47 : x
  2. Step 2: Convert to fraction form
    93,881.94/129,569.13 = 53,586.47/x
  3. Step 3: Cross multiply
    93,881.94x = 129,569.13 × 53,586.47
  4. Step 4: Simplify right side
    93,881.94x = 6,943,151,649.83
  5. Step 5: Solve for x
    x = 6,943,151,649.83/93,881.94
  6. Step 6: Final answer
    x = 73,956.20

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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.