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Finding the Fourth Proportional to 222,330.99, 306,814.95 and 120,354.38

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Solution

The fourth proportional to 222,330.99, 306,814.95 and 120,354.38 is: 166,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,330.99 : 306,814.95 = 120,354.38 : x
  2. Step 2: Convert to fraction form
    222,330.99/306,814.95 = 120,354.38/x
  3. Step 3: Cross multiply
    222,330.99x = 306,814.95 × 120,354.38
  4. Step 4: Simplify right side
    222,330.99x = 36,926,521,547.91
  5. Step 5: Solve for x
    x = 36,926,521,547.91/222,330.99
  6. Step 6: Final answer
    x = 166,088.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.