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Finding the Fourth Proportional to 180,068.49, 248,518.53 and 103,585.68

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Solution

The fourth proportional to 180,068.49, 248,518.53 and 103,585.68 is: 142,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,068.49 : 248,518.53 = 103,585.68 : x
  2. Step 2: Convert to fraction form
    180,068.49/248,518.53 = 103,585.68/x
  3. Step 3: Cross multiply
    180,068.49x = 248,518.53 × 103,585.68
  4. Step 4: Simplify right side
    180,068.49x = 25,742,960,922.65
  5. Step 5: Solve for x
    x = 25,742,960,922.65/180,068.49
  6. Step 6: Final answer
    x = 142,962.05

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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.