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Finding the Fourth Proportional to 571,577.68, 857,357.60 and 139,300.08

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Solution

The fourth proportional to 571,577.68, 857,357.60 and 139,300.08 is: 208,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,577.68 : 857,357.60 = 139,300.08 : x
  2. Step 2: Convert to fraction form
    571,577.68/857,357.60 = 139,300.08/x
  3. Step 3: Cross multiply
    571,577.68x = 857,357.60 × 139,300.08
  4. Step 4: Simplify right side
    571,577.68x = 119,429,982,268.61
  5. Step 5: Solve for x
    x = 119,429,982,268.61/571,577.68
  6. Step 6: Final answer
    x = 208,947.95

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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.