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Finding the Fourth Proportional to 313,590.03, 470,451.87 and 89,019.15

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Solution

The fourth proportional to 313,590.03, 470,451.87 and 89,019.15 is: 133,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,590.03 : 470,451.87 = 89,019.15 : x
  2. Step 2: Convert to fraction form
    313,590.03/470,451.87 = 89,019.15/x
  3. Step 3: Cross multiply
    313,590.03x = 470,451.87 × 89,019.15
  4. Step 4: Simplify right side
    313,590.03x = 41,879,225,583.31
  5. Step 5: Solve for x
    x = 41,879,225,583.31/313,590.03
  6. Step 6: Final answer
    x = 133,547.69

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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.