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Finding the Fourth Proportional to 104,506.84, 144,220.48 and 56,761.12

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Solution

The fourth proportional to 104,506.84, 144,220.48 and 56,761.12 is: 78,330.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,506.84 : 144,220.48 = 56,761.12 : x
  2. Step 2: Convert to fraction form
    104,506.84/144,220.48 = 56,761.12/x
  3. Step 3: Cross multiply
    104,506.84x = 144,220.48 × 56,761.12
  4. Step 4: Simplify right side
    104,506.84x = 8,186,115,971.74
  5. Step 5: Solve for x
    x = 8,186,115,971.74/104,506.84
  6. Step 6: Final answer
    x = 78,330.91

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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.