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Finding the Fourth Proportional to 93,312.86, 128,771.78 and 53,026.65

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Solution

The fourth proportional to 93,312.86, 128,771.78 and 53,026.65 is: 73,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312.86 : 128,771.78 = 53,026.65 : x
  2. Step 2: Convert to fraction form
    93,312.86/128,771.78 = 53,026.65/x
  3. Step 3: Cross multiply
    93,312.86x = 128,771.78 × 53,026.65
  4. Step 4: Simplify right side
    93,312.86x = 6,828,335,842.80
  5. Step 5: Solve for x
    x = 6,828,335,842.80/93,312.86
  6. Step 6: Final answer
    x = 73,176.80

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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.