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Finding the Fourth Proportional to 245,703.63, 368,555.61 and 68,210.67

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Solution

The fourth proportional to 245,703.63, 368,555.61 and 68,210.67 is: 102,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,703.63 : 368,555.61 = 68,210.67 : x
  2. Step 2: Convert to fraction form
    245,703.63/368,555.61 = 68,210.67/x
  3. Step 3: Cross multiply
    245,703.63x = 368,555.61 × 68,210.67
  4. Step 4: Simplify right side
    245,703.63x = 25,139,425,090.36
  5. Step 5: Solve for x
    x = 25,139,425,090.36/245,703.63
  6. Step 6: Final answer
    x = 102,316.05

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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.