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Finding the Fourth Proportional to 153,606.80, 212,037.96 and 148,624.40

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Solution

The fourth proportional to 153,606.80, 212,037.96 and 148,624.40 is: 205,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,606.80 : 212,037.96 = 148,624.40 : x
  2. Step 2: Convert to fraction form
    153,606.80/212,037.96 = 148,624.40/x
  3. Step 3: Cross multiply
    153,606.80x = 212,037.96 × 148,624.40
  4. Step 4: Simplify right side
    153,606.80x = 31,514,014,582.22
  5. Step 5: Solve for x
    x = 31,514,014,582.22/153,606.80
  6. Step 6: Final answer
    x = 205,160.28

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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.