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Finding the Fourth Proportional to 70,989.71, 97,941.02 and 45,510.12

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Solution

The fourth proportional to 70,989.71, 97,941.02 and 45,510.12 is: 62,788.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,989.71 : 97,941.02 = 45,510.12 : x
  2. Step 2: Convert to fraction form
    70,989.71/97,941.02 = 45,510.12/x
  3. Step 3: Cross multiply
    70,989.71x = 97,941.02 × 45,510.12
  4. Step 4: Simplify right side
    70,989.71x = 4,457,307,345.57
  5. Step 5: Solve for x
    x = 4,457,307,345.57/70,989.71
  6. Step 6: Final answer
    x = 62,788.08

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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.