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Finding the Fourth Proportional to 92,409.81, 127,526.25 and 51,018.09

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Solution

The fourth proportional to 92,409.81, 127,526.25 and 51,018.09 is: 70,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,409.81 : 127,526.25 = 51,018.09 : x
  2. Step 2: Convert to fraction form
    92,409.81/127,526.25 = 51,018.09/x
  3. Step 3: Cross multiply
    92,409.81x = 127,526.25 × 51,018.09
  4. Step 4: Simplify right side
    92,409.81x = 6,506,145,699.86
  5. Step 5: Solve for x
    x = 6,506,145,699.86/92,409.81
  6. Step 6: Final answer
    x = 70,405.36

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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.