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Finding the Fourth Proportional to 90,873.74, 125,510.75 and 60,606.47

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Solution

The fourth proportional to 90,873.74, 125,510.75 and 60,606.47 is: 83,706.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,873.74 : 125,510.75 = 60,606.47 : x
  2. Step 2: Convert to fraction form
    90,873.74/125,510.75 = 60,606.47/x
  3. Step 3: Cross multiply
    90,873.74x = 125,510.75 × 60,606.47
  4. Step 4: Simplify right side
    90,873.74x = 7,606,763,028.51
  5. Step 5: Solve for x
    x = 7,606,763,028.51/90,873.74
  6. Step 6: Final answer
    x = 83,706.94

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1.5x scale

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.