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Finding the Fourth Proportional to 281,980.80, 423,068.40 and 124,322.40

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Solution

The fourth proportional to 281,980.80, 423,068.40 and 124,322.40 is: 186,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,980.80 : 423,068.40 = 124,322.40 : x
  2. Step 2: Convert to fraction form
    281,980.80/423,068.40 = 124,322.40/x
  3. Step 3: Cross multiply
    281,980.80x = 423,068.40 × 124,322.40
  4. Step 4: Simplify right side
    281,980.80x = 52,596,878,852.16
  5. Step 5: Solve for x
    x = 52,596,878,852.16/281,980.80
  6. Step 6: Final answer
    x = 186,526.45

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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.