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Finding the Fourth Proportional to 93,060.64, 128,425.68 and 53,316.64

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Solution

The fourth proportional to 93,060.64, 128,425.68 and 53,316.64 is: 73,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,060.64 : 128,425.68 = 53,316.64 : x
  2. Step 2: Convert to fraction form
    93,060.64/128,425.68 = 53,316.64/x
  3. Step 3: Cross multiply
    93,060.64x = 128,425.68 × 53,316.64
  4. Step 4: Simplify right side
    93,060.64x = 6,847,225,747.32
  5. Step 5: Solve for x
    x = 6,847,225,747.32/93,060.64
  6. Step 6: Final answer
    x = 73,578.11

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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.