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Finding the Fourth Proportional to 313,482.30, 470,223.45 and 103,092.90

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Solution

The fourth proportional to 313,482.30, 470,223.45 and 103,092.90 is: 154,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,482.30 : 470,223.45 = 103,092.90 : x
  2. Step 2: Convert to fraction form
    313,482.30/470,223.45 = 103,092.90/x
  3. Step 3: Cross multiply
    313,482.30x = 470,223.45 × 103,092.90
  4. Step 4: Simplify right side
    313,482.30x = 48,476,699,108.51
  5. Step 5: Solve for x
    x = 48,476,699,108.51/313,482.30
  6. Step 6: Final answer
    x = 154,639.35

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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.