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Finding the Fourth Proportional to 235,457,312.60, 353,185,968.90 and 225,505,587.80

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Solution

The fourth proportional to 235,457,312.60, 353,185,968.90 and 225,505,587.80 is: 338,258,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,457,312.60 : 353,185,968.90 = 225,505,587.80 : x
  2. Step 2: Convert to fraction form
    235,457,312.60/353,185,968.90 = 225,505,587.80/x
  3. Step 3: Cross multiply
    235,457,312.60x = 353,185,968.90 × 225,505,587.80
  4. Step 4: Simplify right side
    235,457,312.60x = 79,645,409,519,507,024
  5. Step 5: Solve for x
    x = 79,645,409,519,507,024/235,457,312.60
  6. Step 6: Final answer
    x = 338,258,381.70

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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.