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Finding the Fourth Proportional to 93,888.28, 129,576.66 and 53,607.76

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Solution

The fourth proportional to 93,888.28, 129,576.66 and 53,607.76 is: 73,984.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,888.28 : 129,576.66 = 53,607.76 : x
  2. Step 2: Convert to fraction form
    93,888.28/129,576.66 = 53,607.76/x
  3. Step 3: Cross multiply
    93,888.28x = 129,576.66 × 53,607.76
  4. Step 4: Simplify right side
    93,888.28x = 6,946,314,490.88
  5. Step 5: Solve for x
    x = 6,946,314,490.88/93,888.28
  6. Step 6: Final answer
    x = 73,984.89

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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.