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Finding the Fourth Proportional to 235,528.40, 353,443.80 and 130,422.80

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Solution

The fourth proportional to 235,528.40, 353,443.80 and 130,422.80 is: 195,717.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,528.40 : 353,443.80 = 130,422.80 : x
  2. Step 2: Convert to fraction form
    235,528.40/353,443.80 = 130,422.80/x
  3. Step 3: Cross multiply
    235,528.40x = 353,443.80 × 130,422.80
  4. Step 4: Simplify right side
    235,528.40x = 46,097,130,038.64
  5. Step 5: Solve for x
    x = 46,097,130,038.64/235,528.40
  6. Step 6: Final answer
    x = 195,717.93

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1.5x scale

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.