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Finding the Fourth Proportional to 92,948.88, 128,270.16 and 50,507.64

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Solution

The fourth proportional to 92,948.88, 128,270.16 and 50,507.64 is: 69,700.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,948.88 : 128,270.16 = 50,507.64 : x
  2. Step 2: Convert to fraction form
    92,948.88/128,270.16 = 50,507.64/x
  3. Step 3: Cross multiply
    92,948.88x = 128,270.16 × 50,507.64
  4. Step 4: Simplify right side
    92,948.88x = 6,478,623,064.02
  5. Step 5: Solve for x
    x = 6,478,623,064.02/92,948.88
  6. Step 6: Final answer
    x = 69,700.93

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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.