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Finding the Fourth Proportional to 153,798.62, 212,256.74 and 93,355.40

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Solution

The fourth proportional to 153,798.62, 212,256.74 and 93,355.40 is: 128,839.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,798.62 : 212,256.74 = 93,355.40 : x
  2. Step 2: Convert to fraction form
    153,798.62/212,256.74 = 93,355.40/x
  3. Step 3: Cross multiply
    153,798.62x = 212,256.74 × 93,355.40
  4. Step 4: Simplify right side
    153,798.62x = 19,815,311,337.34
  5. Step 5: Solve for x
    x = 19,815,311,337.34/153,798.62
  6. Step 6: Final answer
    x = 128,839.34

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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.