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Finding the Fourth Proportional to 74,329.16, 111,478.62 and 61,929.32

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Solution

The fourth proportional to 74,329.16, 111,478.62 and 61,929.32 is: 92,881.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,329.16 : 111,478.62 = 61,929.32 : x
  2. Step 2: Convert to fraction form
    74,329.16/111,478.62 = 61,929.32/x
  3. Step 3: Cross multiply
    74,329.16x = 111,478.62 × 61,929.32
  4. Step 4: Simplify right side
    74,329.16x = 6,903,795,131.14
  5. Step 5: Solve for x
    x = 6,903,795,131.14/74,329.16
  6. Step 6: Final answer
    x = 92,881.38

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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.