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Finding the Fourth Proportional to 571,692.60, 857,261.94 and 172,258.92

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Solution

The fourth proportional to 571,692.60, 857,261.94 and 172,258.92 is: 258,304.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,692.60 : 857,261.94 = 172,258.92 : x
  2. Step 2: Convert to fraction form
    571,692.60/857,261.94 = 172,258.92/x
  3. Step 3: Cross multiply
    571,692.60x = 857,261.94 × 172,258.92
  4. Step 4: Simplify right side
    571,692.60x = 147,671,015,941.51
  5. Step 5: Solve for x
    x = 147,671,015,941.51/571,692.60
  6. Step 6: Final answer
    x = 258,304.93

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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.