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Finding the Fourth Proportional to 112,812,862.80, 168,953,873.40 and 112,812,862.80

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Solution

The fourth proportional to 112,812,862.80, 168,953,873.40 and 112,812,862.80 is: 168,953,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,812,862.80 : 168,953,873.40 = 112,812,862.80 : x
  2. Step 2: Convert to fraction form
    112,812,862.80/168,953,873.40 = 112,812,862.80/x
  3. Step 3: Cross multiply
    112,812,862.80x = 168,953,873.40 × 112,812,862.80
  4. Step 4: Simplify right side
    112,812,862.80x = 19,060,170,139,402,768
  5. Step 5: Solve for x
    x = 19,060,170,139,402,768/112,812,862.80
  6. Step 6: Final answer
    x = 168,953,873.40

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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.