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Finding the Fourth Proportional to 235,415.60, 353,123.40 and 57,920.30

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Solution

The fourth proportional to 235,415.60, 353,123.40 and 57,920.30 is: 86,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,415.60 : 353,123.40 = 57,920.30 : x
  2. Step 2: Convert to fraction form
    235,415.60/353,123.40 = 57,920.30/x
  3. Step 3: Cross multiply
    235,415.60x = 353,123.40 × 57,920.30
  4. Step 4: Simplify right side
    235,415.60x = 20,453,013,265.02
  5. Step 5: Solve for x
    x = 20,453,013,265.02/235,415.60
  6. Step 6: Final answer
    x = 86,880.45

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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.