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Finding the Fourth Proportional to 185,884.95, 256,521.87 and 105,327.39

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Solution

The fourth proportional to 185,884.95, 256,521.87 and 105,327.39 is: 145,352.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,884.95 : 256,521.87 = 105,327.39 : x
  2. Step 2: Convert to fraction form
    185,884.95/256,521.87 = 105,327.39/x
  3. Step 3: Cross multiply
    185,884.95x = 256,521.87 × 105,327.39
  4. Step 4: Simplify right side
    185,884.95x = 27,018,779,045.02
  5. Step 5: Solve for x
    x = 27,018,779,045.02/185,884.95
  6. Step 6: Final answer
    x = 145,352.16

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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.