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Finding the Fourth Proportional to 186,779.60, 257,759.28 and 101,896.40

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Solution

The fourth proportional to 186,779.60, 257,759.28 and 101,896.40 is: 140,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,779.60 : 257,759.28 = 101,896.40 : x
  2. Step 2: Convert to fraction form
    186,779.60/257,759.28 = 101,896.40/x
  3. Step 3: Cross multiply
    186,779.60x = 257,759.28 × 101,896.40
  4. Step 4: Simplify right side
    186,779.60x = 26,264,742,698.59
  5. Step 5: Solve for x
    x = 26,264,742,698.59/186,779.60
  6. Step 6: Final answer
    x = 140,618.90

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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.