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Finding the Fourth Proportional to 70,640.68, 97,509.72 and 46,775.04

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Solution

The fourth proportional to 70,640.68, 97,509.72 and 46,775.04 is: 64,566.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,640.68 : 97,509.72 = 46,775.04 : x
  2. Step 2: Convert to fraction form
    70,640.68/97,509.72 = 46,775.04/x
  3. Step 3: Cross multiply
    70,640.68x = 97,509.72 × 46,775.04
  4. Step 4: Simplify right side
    70,640.68x = 4,561,021,053.39
  5. Step 5: Solve for x
    x = 4,561,021,053.39/70,640.68
  6. Step 6: Final answer
    x = 64,566.49

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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.