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Finding the Fourth Proportional to 85,774.68, 118,368.72 and 48,048.84

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Solution

The fourth proportional to 85,774.68, 118,368.72 and 48,048.84 is: 66,307.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,774.68 : 118,368.72 = 48,048.84 : x
  2. Step 2: Convert to fraction form
    85,774.68/118,368.72 = 48,048.84/x
  3. Step 3: Cross multiply
    85,774.68x = 118,368.72 × 48,048.84
  4. Step 4: Simplify right side
    85,774.68x = 5,687,479,688.28
  5. Step 5: Solve for x
    x = 5,687,479,688.28/85,774.68
  6. Step 6: Final answer
    x = 66,307.21

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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.