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Finding the Fourth Proportional to 93,269.64, 128,711.88 and 50,828.06

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Solution

The fourth proportional to 93,269.64, 128,711.88 and 50,828.06 is: 70,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,269.64 : 128,711.88 = 50,828.06 : x
  2. Step 2: Convert to fraction form
    93,269.64/128,711.88 = 50,828.06/x
  3. Step 3: Cross multiply
    93,269.64x = 128,711.88 × 50,828.06
  4. Step 4: Simplify right side
    93,269.64x = 6,542,175,159.35
  5. Step 5: Solve for x
    x = 6,542,175,159.35/93,269.64
  6. Step 6: Final answer
    x = 70,142.60

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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.