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Finding the Fourth Proportional to 75,663.42, 104,303.47 and 48,435.49

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Solution

The fourth proportional to 75,663.42, 104,303.47 and 48,435.49 is: 66,769.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,663.42 : 104,303.47 = 48,435.49 : x
  2. Step 2: Convert to fraction form
    75,663.42/104,303.47 = 48,435.49/x
  3. Step 3: Cross multiply
    75,663.42x = 104,303.47 × 48,435.49
  4. Step 4: Simplify right side
    75,663.42x = 5,051,989,678.15
  5. Step 5: Solve for x
    x = 5,051,989,678.15/75,663.42
  6. Step 6: Final answer
    x = 66,769.25

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1.5x scale

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.