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Finding the Fourth Proportional to 76,404.04, 105,416.04 and 49,547.68

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Solution

The fourth proportional to 76,404.04, 105,416.04 and 49,547.68 is: 68,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,404.04 : 105,416.04 = 49,547.68 : x
  2. Step 2: Convert to fraction form
    76,404.04/105,416.04 = 49,547.68/x
  3. Step 3: Cross multiply
    76,404.04x = 105,416.04 × 49,547.68
  4. Step 4: Simplify right side
    76,404.04x = 5,223,120,216.79
  5. Step 5: Solve for x
    x = 5,223,120,216.79/76,404.04
  6. Step 6: Final answer
    x = 68,361.83

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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.