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Finding the Fourth Proportional to 168,018.40, 235,536.80 and 168,018.40

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Solution

The fourth proportional to 168,018.40, 235,536.80 and 168,018.40 is: 235,536.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,018.40 : 235,536.80 = 168,018.40 : x
  2. Step 2: Convert to fraction form
    168,018.40/235,536.80 = 168,018.40/x
  3. Step 3: Cross multiply
    168,018.40x = 235,536.80 × 168,018.40
  4. Step 4: Simplify right side
    168,018.40x = 39,574,516,277.12
  5. Step 5: Solve for x
    x = 39,574,516,277.12/168,018.40
  6. Step 6: Final answer
    x = 235,536.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.