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Finding the Fourth Proportional to 134,774.80, 202,328.60 and 84,854.80

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Solution

The fourth proportional to 134,774.80, 202,328.60 and 84,854.80 is: 127,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,774.80 : 202,328.60 = 84,854.80 : x
  2. Step 2: Convert to fraction form
    134,774.80/202,328.60 = 84,854.80/x
  3. Step 3: Cross multiply
    134,774.80x = 202,328.60 × 84,854.80
  4. Step 4: Simplify right side
    134,774.80x = 17,168,552,887.28
  5. Step 5: Solve for x
    x = 17,168,552,887.28/134,774.80
  6. Step 6: Final answer
    x = 127,386.97

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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.