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Finding the Fourth Proportional to 64,417.53, 96,629.33 and 53,151.97

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Solution

The fourth proportional to 64,417.53, 96,629.33 and 53,151.97 is: 79,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,417.53 : 96,629.33 = 53,151.97 : x
  2. Step 2: Convert to fraction form
    64,417.53/96,629.33 = 53,151.97/x
  3. Step 3: Cross multiply
    64,417.53x = 96,629.33 × 53,151.97
  4. Step 4: Simplify right side
    64,417.53x = 5,136,038,741.95
  5. Step 5: Solve for x
    x = 5,136,038,741.95/64,417.53
  6. Step 6: Final answer
    x = 79,730.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.