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Finding the Fourth Proportional to 235,666.83, 325,214.91 and 128,237.16

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Solution

The fourth proportional to 235,666.83, 325,214.91 and 128,237.16 is: 176,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,666.83 : 325,214.91 = 128,237.16 : x
  2. Step 2: Convert to fraction form
    235,666.83/325,214.91 = 128,237.16/x
  3. Step 3: Cross multiply
    235,666.83x = 325,214.91 × 128,237.16
  4. Step 4: Simplify right side
    235,666.83x = 41,704,636,448.06
  5. Step 5: Solve for x
    x = 41,704,636,448.06/235,666.83
  6. Step 6: Final answer
    x = 176,964.39

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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.