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Finding the Fourth Proportional to 93,073.55, 128,443.95 and 52,779.69

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Solution

The fourth proportional to 93,073.55, 128,443.95 and 52,779.69 is: 72,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,073.55 : 128,443.95 = 52,779.69 : x
  2. Step 2: Convert to fraction form
    93,073.55/128,443.95 = 52,779.69/x
  3. Step 3: Cross multiply
    93,073.55x = 128,443.95 × 52,779.69
  4. Step 4: Simplify right side
    93,073.55x = 6,779,231,863.38
  5. Step 5: Solve for x
    x = 6,779,231,863.38/93,073.55
  6. Step 6: Final answer
    x = 72,837.37

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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.