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Finding the Fourth Proportional to 83,283.76, 114,931.74 and 45,558.01

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Solution

The fourth proportional to 83,283.76, 114,931.74 and 45,558.01 is: 62,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,283.76 : 114,931.74 = 45,558.01 : x
  2. Step 2: Convert to fraction form
    83,283.76/114,931.74 = 45,558.01/x
  3. Step 3: Cross multiply
    83,283.76x = 114,931.74 × 45,558.01
  4. Step 4: Simplify right side
    83,283.76x = 5,236,061,360.24
  5. Step 5: Solve for x
    x = 5,236,061,360.24/83,283.76
  6. Step 6: Final answer
    x = 62,870.14

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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.