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Finding the Fourth Proportional to 70,168, 96,875.04 and 45,061.76

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Solution

The fourth proportional to 70,168, 96,875.04 and 45,061.76 is: 62,212.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,168 : 96,875.04 = 45,061.76 : x
  2. Step 2: Convert to fraction form
    70,168/96,875.04 = 45,061.76/x
  3. Step 3: Cross multiply
    70,168x = 96,875.04 × 45,061.76
  4. Step 4: Simplify right side
    70,168x = 4,365,359,802.47
  5. Step 5: Solve for x
    x = 4,365,359,802.47/70,168
  6. Step 6: Final answer
    x = 62,212.97

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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.