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Finding the Fourth Proportional to 153,677.00, 212,078.01 and 85,693.31

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Solution

The fourth proportional to 153,677.00, 212,078.01 and 85,693.31 is: 118,258.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,677.00 : 212,078.01 = 85,693.31 : x
  2. Step 2: Convert to fraction form
    153,677.00/212,078.01 = 85,693.31/x
  3. Step 3: Cross multiply
    153,677.00x = 212,078.01 × 85,693.31
  4. Step 4: Simplify right side
    153,677.00x = 18,173,666,711.37
  5. Step 5: Solve for x
    x = 18,173,666,711.37/153,677.00
  6. Step 6: Final answer
    x = 118,258.86

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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.