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Finding the Fourth Proportional to 93,412.47, 128,912.07 and 53,132.04

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Solution

The fourth proportional to 93,412.47, 128,912.07 and 53,132.04 is: 73,323.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,412.47 : 128,912.07 = 53,132.04 : x
  2. Step 2: Convert to fraction form
    93,412.47/128,912.07 = 53,132.04/x
  3. Step 3: Cross multiply
    93,412.47x = 128,912.07 × 53,132.04
  4. Step 4: Simplify right side
    93,412.47x = 6,849,361,259.72
  5. Step 5: Solve for x
    x = 6,849,361,259.72/93,412.47
  6. Step 6: Final answer
    x = 73,323.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.