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Finding the Fourth Proportional to 119,303.50, 164,634.64 and 65,588.13

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Solution

The fourth proportional to 119,303.50, 164,634.64 and 65,588.13 is: 90,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,303.50 : 164,634.64 = 65,588.13 : x
  2. Step 2: Convert to fraction form
    119,303.50/164,634.64 = 65,588.13/x
  3. Step 3: Cross multiply
    119,303.50x = 164,634.64 × 65,588.13
  4. Step 4: Simplify right side
    119,303.50x = 10,798,077,019.71
  5. Step 5: Solve for x
    x = 10,798,077,019.71/119,303.50
  6. Step 6: Final answer
    x = 90,509.31

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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.