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Finding the Fourth Proportional to 243,368.80, 365,830.80 and 173,730.40

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Solution

The fourth proportional to 243,368.80, 365,830.80 and 173,730.40 is: 261,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,368.80 : 365,830.80 = 173,730.40 : x
  2. Step 2: Convert to fraction form
    243,368.80/365,830.80 = 173,730.40/x
  3. Step 3: Cross multiply
    243,368.80x = 365,830.80 × 173,730.40
  4. Step 4: Simplify right side
    243,368.80x = 63,555,931,216.32
  5. Step 5: Solve for x
    x = 63,555,931,216.32/243,368.80
  6. Step 6: Final answer
    x = 261,150.69

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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.