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Finding the Fourth Proportional to 104,812.74, 144,644.19 and 57,068.71

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Solution

The fourth proportional to 104,812.74, 144,644.19 and 57,068.71 is: 78,756.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,812.74 : 144,644.19 = 57,068.71 : x
  2. Step 2: Convert to fraction form
    104,812.74/144,644.19 = 57,068.71/x
  3. Step 3: Cross multiply
    104,812.74x = 144,644.19 × 57,068.71
  4. Step 4: Simplify right side
    104,812.74x = 8,254,657,332.29
  5. Step 5: Solve for x
    x = 8,254,657,332.29/104,812.74
  6. Step 6: Final answer
    x = 78,756.24

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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.