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Finding the Fourth Proportional to 170,742.30, 256,113.45 and 92,010.30

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Solution

The fourth proportional to 170,742.30, 256,113.45 and 92,010.30 is: 138,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,742.30 : 256,113.45 = 92,010.30 : x
  2. Step 2: Convert to fraction form
    170,742.30/256,113.45 = 92,010.30/x
  3. Step 3: Cross multiply
    170,742.30x = 256,113.45 × 92,010.30
  4. Step 4: Simplify right side
    170,742.30x = 23,565,075,368.54
  5. Step 5: Solve for x
    x = 23,565,075,368.54/170,742.30
  6. Step 6: Final answer
    x = 138,015.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.