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Finding the Fourth Proportional to 343,135.20, 514,702.80 and 93,842.40

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Solution

The fourth proportional to 343,135.20, 514,702.80 and 93,842.40 is: 140,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,135.20 : 514,702.80 = 93,842.40 : x
  2. Step 2: Convert to fraction form
    343,135.20/514,702.80 = 93,842.40/x
  3. Step 3: Cross multiply
    343,135.20x = 514,702.80 × 93,842.40
  4. Step 4: Simplify right side
    343,135.20x = 48,300,946,038.72
  5. Step 5: Solve for x
    x = 48,300,946,038.72/343,135.20
  6. Step 6: Final answer
    x = 140,763.60

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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.