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Finding the Fourth Proportional to 213,133,038.10, 319,699,557.15 and 213,133,038.10

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Solution

The fourth proportional to 213,133,038.10, 319,699,557.15 and 213,133,038.10 is: 319,699,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,133,038.10 : 319,699,557.15 = 213,133,038.10 : x
  2. Step 2: Convert to fraction form
    213,133,038.10/319,699,557.15 = 213,133,038.10/x
  3. Step 3: Cross multiply
    213,133,038.10x = 319,699,557.15 × 213,133,038.10
  4. Step 4: Simplify right side
    213,133,038.10x = 68,138,537,894,604,072
  5. Step 5: Solve for x
    x = 68,138,537,894,604,072/213,133,038.10
  6. Step 6: Final answer
    x = 319,699,557.15

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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.