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Finding the Fourth Proportional to 93,222.85, 128,641.47 and 54,973.63

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Solution

The fourth proportional to 93,222.85, 128,641.47 and 54,973.63 is: 75,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,222.85 : 128,641.47 = 54,973.63 : x
  2. Step 2: Convert to fraction form
    93,222.85/128,641.47 = 54,973.63/x
  3. Step 3: Cross multiply
    93,222.85x = 128,641.47 × 54,973.63
  4. Step 4: Simplify right side
    93,222.85x = 7,071,888,114.71
  5. Step 5: Solve for x
    x = 7,071,888,114.71/93,222.85
  6. Step 6: Final answer
    x = 75,860.03

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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.