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Finding the Fourth Proportional to 76,463.44, 105,502.40 and 42,927.28

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Solution

The fourth proportional to 76,463.44, 105,502.40 and 42,927.28 is: 59,230.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,463.44 : 105,502.40 = 42,927.28 : x
  2. Step 2: Convert to fraction form
    76,463.44/105,502.40 = 42,927.28/x
  3. Step 3: Cross multiply
    76,463.44x = 105,502.40 × 42,927.28
  4. Step 4: Simplify right side
    76,463.44x = 4,528,931,065.47
  5. Step 5: Solve for x
    x = 4,528,931,065.47/76,463.44
  6. Step 6: Final answer
    x = 59,230.02

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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.