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Finding the Fourth Proportional to 76,181.50, 105,130.47 and 46,373.50

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Solution

The fourth proportional to 76,181.50, 105,130.47 and 46,373.50 is: 63,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,181.50 : 105,130.47 = 46,373.50 : x
  2. Step 2: Convert to fraction form
    76,181.50/105,130.47 = 46,373.50/x
  3. Step 3: Cross multiply
    76,181.50x = 105,130.47 × 46,373.50
  4. Step 4: Simplify right side
    76,181.50x = 4,875,267,850.55
  5. Step 5: Solve for x
    x = 4,875,267,850.55/76,181.50
  6. Step 6: Final answer
    x = 63,995.43

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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.