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Finding the Fourth Proportional to 77,329.50, 106,709.65 and 45,492.24

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Solution

The fourth proportional to 77,329.50, 106,709.65 and 45,492.24 is: 62,776.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,329.50 : 106,709.65 = 45,492.24 : x
  2. Step 2: Convert to fraction form
    77,329.50/106,709.65 = 45,492.24/x
  3. Step 3: Cross multiply
    77,329.50x = 106,709.65 × 45,492.24
  4. Step 4: Simplify right side
    77,329.50x = 4,854,461,550.44
  5. Step 5: Solve for x
    x = 4,854,461,550.44/77,329.50
  6. Step 6: Final answer
    x = 62,776.32

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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.