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Finding the Fourth Proportional to 70,888,728.72, 97,844,645.88 and 46,170,509.52

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Solution

The fourth proportional to 70,888,728.72, 97,844,645.88 and 46,170,509.52 is: 63,727,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,888,728.72 : 97,844,645.88 = 46,170,509.52 : x
  2. Step 2: Convert to fraction form
    70,888,728.72/97,844,645.88 = 46,170,509.52/x
  3. Step 3: Cross multiply
    70,888,728.72x = 97,844,645.88 × 46,170,509.52
  4. Step 4: Simplify right side
    70,888,728.72x = 4,517,537,154,083,569
  5. Step 5: Solve for x
    x = 4,517,537,154,083,569/70,888,728.72
  6. Step 6: Final answer
    x = 63,727,157.13

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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.