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Finding the Fourth Proportional to 158,448,602.80, 237,672,904.20 and 66,316,416.40

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Solution

The fourth proportional to 158,448,602.80, 237,672,904.20 and 66,316,416.40 is: 99,474,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,448,602.80 : 237,672,904.20 = 66,316,416.40 : x
  2. Step 2: Convert to fraction form
    158,448,602.80/237,672,904.20 = 66,316,416.40/x
  3. Step 3: Cross multiply
    158,448,602.80x = 237,672,904.20 × 66,316,416.40
  4. Step 4: Simplify right side
    158,448,602.80x = 15,761,615,281,924,508
  5. Step 5: Solve for x
    x = 15,761,615,281,924,508/158,448,602.80
  6. Step 6: Final answer
    x = 99,474,624.60

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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.