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Finding the Fourth Proportional to 94,415, 130,291.08 and 54,127.76

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Solution

The fourth proportional to 94,415, 130,291.08 and 54,127.76 is: 74,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,415 : 130,291.08 = 54,127.76 : x
  2. Step 2: Convert to fraction form
    94,415/130,291.08 = 54,127.76/x
  3. Step 3: Cross multiply
    94,415x = 130,291.08 × 54,127.76
  4. Step 4: Simplify right side
    94,415x = 7,052,364,308.38
  5. Step 5: Solve for x
    x = 7,052,364,308.38/94,415
  6. Step 6: Final answer
    x = 74,695.38

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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.