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Finding the Fourth Proportional to 93,308.93, 128,762.49 and 52,471.89

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Solution

The fourth proportional to 93,308.93, 128,762.49 and 52,471.89 is: 72,409.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,308.93 : 128,762.49 = 52,471.89 : x
  2. Step 2: Convert to fraction form
    93,308.93/128,762.49 = 52,471.89/x
  3. Step 3: Cross multiply
    93,308.93x = 128,762.49 × 52,471.89
  4. Step 4: Simplify right side
    93,308.93x = 6,756,411,408.18
  5. Step 5: Solve for x
    x = 6,756,411,408.18/93,308.93
  6. Step 6: Final answer
    x = 72,409.06

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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.