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Finding the Fourth Proportional to 93,924.04, 129,571.86 and 54,157

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Solution

The fourth proportional to 93,924.04, 129,571.86 and 54,157 is: 74,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,924.04 : 129,571.86 = 54,157 : x
  2. Step 2: Convert to fraction form
    93,924.04/129,571.86 = 54,157/x
  3. Step 3: Cross multiply
    93,924.04x = 129,571.86 × 54,157
  4. Step 4: Simplify right side
    93,924.04x = 7,017,223,222.02
  5. Step 5: Solve for x
    x = 7,017,223,222.02/93,924.04
  6. Step 6: Final answer
    x = 74,711.68

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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.