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Finding the Fourth Proportional to 93,779.28, 140,366.88 and 61,784.77

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Solution

The fourth proportional to 93,779.28, 140,366.88 and 61,784.77 is: 92,478.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,779.28 : 140,366.88 = 61,784.77 : x
  2. Step 2: Convert to fraction form
    93,779.28/140,366.88 = 61,784.77/x
  3. Step 3: Cross multiply
    93,779.28x = 140,366.88 × 61,784.77
  4. Step 4: Simplify right side
    93,779.28x = 8,672,535,045.50
  5. Step 5: Solve for x
    x = 8,672,535,045.50/93,779.28
  6. Step 6: Final answer
    x = 92,478.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.