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Finding the Fourth Proportional to 94,457, 130,339.30 and 54,168.68

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Solution

The fourth proportional to 94,457, 130,339.30 and 54,168.68 is: 74,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,457 : 130,339.30 = 54,168.68 : x
  2. Step 2: Convert to fraction form
    94,457/130,339.30 = 54,168.68/x
  3. Step 3: Cross multiply
    94,457x = 130,339.30 × 54,168.68
  4. Step 4: Simplify right side
    94,457x = 7,060,307,833.12
  5. Step 5: Solve for x
    x = 7,060,307,833.12/94,457
  6. Step 6: Final answer
    x = 74,746.26

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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.