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Finding the Fourth Proportional to 92,090.70, 127,009.35 and 54,328.50

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Solution

The fourth proportional to 92,090.70, 127,009.35 and 54,328.50 is: 74,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,090.70 : 127,009.35 = 54,328.50 : x
  2. Step 2: Convert to fraction form
    92,090.70/127,009.35 = 54,328.50/x
  3. Step 3: Cross multiply
    92,090.70x = 127,009.35 × 54,328.50
  4. Step 4: Simplify right side
    92,090.70x = 6,900,227,471.48
  5. Step 5: Solve for x
    x = 6,900,227,471.48/92,090.70
  6. Step 6: Final answer
    x = 74,928.60

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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.