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Finding the Fourth Proportional to 70,606.63, 97,445.79 and 40,798.63

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Solution

The fourth proportional to 70,606.63, 97,445.79 and 40,798.63 is: 56,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,606.63 : 97,445.79 = 40,798.63 : x
  2. Step 2: Convert to fraction form
    70,606.63/97,445.79 = 40,798.63/x
  3. Step 3: Cross multiply
    70,606.63x = 97,445.79 × 40,798.63
  4. Step 4: Simplify right side
    70,606.63x = 3,975,654,040.05
  5. Step 5: Solve for x
    x = 3,975,654,040.05/70,606.63
  6. Step 6: Final answer
    x = 56,307.10

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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.