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Finding the Fourth Proportional to 94,367.52, 130,090.32 and 65,985.12

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Solution

The fourth proportional to 94,367.52, 130,090.32 and 65,985.12 is: 90,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,367.52 : 130,090.32 = 65,985.12 : x
  2. Step 2: Convert to fraction form
    94,367.52/130,090.32 = 65,985.12/x
  3. Step 3: Cross multiply
    94,367.52x = 130,090.32 × 65,985.12
  4. Step 4: Simplify right side
    94,367.52x = 8,584,025,376.04
  5. Step 5: Solve for x
    x = 8,584,025,376.04/94,367.52
  6. Step 6: Final answer
    x = 90,963.77

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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.