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Finding the Fourth Proportional to 105,775.65, 145,961.10 and 60,444.63

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Solution

The fourth proportional to 105,775.65, 145,961.10 and 60,444.63 is: 83,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,775.65 : 145,961.10 = 60,444.63 : x
  2. Step 2: Convert to fraction form
    105,775.65/145,961.10 = 60,444.63/x
  3. Step 3: Cross multiply
    105,775.65x = 145,961.10 × 60,444.63
  4. Step 4: Simplify right side
    105,775.65x = 8,822,564,683.89
  5. Step 5: Solve for x
    x = 8,822,564,683.89/105,775.65
  6. Step 6: Final answer
    x = 83,408.28

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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.