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Finding the Fourth Proportional to 72,953.73, 109,430.55 and 56,337.93

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Solution

The fourth proportional to 72,953.73, 109,430.55 and 56,337.93 is: 84,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,953.73 : 109,430.55 = 56,337.93 : x
  2. Step 2: Convert to fraction form
    72,953.73/109,430.55 = 56,337.93/x
  3. Step 3: Cross multiply
    72,953.73x = 109,430.55 × 56,337.93
  4. Step 4: Simplify right side
    72,953.73x = 6,165,090,665.76
  5. Step 5: Solve for x
    x = 6,165,090,665.76/72,953.73
  6. Step 6: Final answer
    x = 84,506.86

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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.