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Finding the Fourth Proportional to 104,258.40, 156,502.80 and 57,602.40

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Solution

The fourth proportional to 104,258.40, 156,502.80 and 57,602.40 is: 86,467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,258.40 : 156,502.80 = 57,602.40 : x
  2. Step 2: Convert to fraction form
    104,258.40/156,502.80 = 57,602.40/x
  3. Step 3: Cross multiply
    104,258.40x = 156,502.80 × 57,602.40
  4. Step 4: Simplify right side
    104,258.40x = 9,014,936,886.72
  5. Step 5: Solve for x
    x = 9,014,936,886.72/104,258.40
  6. Step 6: Final answer
    x = 86,467.25

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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.