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Finding the Fourth Proportional to 153,792.40, 230,688.60 and 70,848.40

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Solution

The fourth proportional to 153,792.40, 230,688.60 and 70,848.40 is: 106,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,792.40 : 230,688.60 = 70,848.40 : x
  2. Step 2: Convert to fraction form
    153,792.40/230,688.60 = 70,848.40/x
  3. Step 3: Cross multiply
    153,792.40x = 230,688.60 × 70,848.40
  4. Step 4: Simplify right side
    153,792.40x = 16,343,918,208.24
  5. Step 5: Solve for x
    x = 16,343,918,208.24/153,792.40
  6. Step 6: Final answer
    x = 106,272.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.